Weighing-machine for testing purposes



(No Model.) Q

L. GIRDLER. Y

WEIGHING MACHINE FOR TESTING PURPOSES.

No. 427,169. Patented May 6,1890.

.| n 5m, 3|h. h l e z A 5 7 g Y I ll q viiweooeo gvwawtoz UNITED STATES ATENT FFICE.

LEXVIS GIRDLER, OF SELLERSBURG, INDIANA.

WElGHlNG-MACHINE FOR TESTING PURPOSES.

SPECIFICATION forming part of Letters Patent No. 427,169, dated May 6, 1890.

Application filed January 4, 1890.

' vide means for weighing the pressure applied to the cement in molds while shaping the cement into forms to be afterward tested as to the strength of the cement.

To this end my invention consists in the construction and combination of parts forming a weighing-machine hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure I represents a front elevation of my weighing-machine. Fig. II is a View looking down upon a' horizontal section at the line 00.

5 represents the floor of a building; 6, the weighing-machine table, having a large hole 7 through it. i

8 is the supporting-frame, secured by bolts 9 to the table, and extending as an inverted- U-shaped bow over and across the'said hole.

1 0 represents the weighing-scale proper, consisting of any usual weighing device having its index in sight from the front of the machine. As here shown, it is a circular dial graduated and numbered around its edge and provided with an index-hand 20. This weighing-scale is suspended to the center of the bow 8, and a platform 11 is suspended upon its weighing hook 21 by means of a curved hanger 12.

13 represents a mold for shaping cement into forms to be tested. This mold is free from the platform, and is placed, as shown, thereon only when used with this machine.

14 represents a piston or follower shaped to fit the interior of the mold and to slide therein. The follower is hung upon a lever 15, which is journaled at 16 to the frame 8, so

Serial No. 335,882. (No model.)

as to bring the follower 14 in a vertical line below the weighing-hook 21.

. 17 is a treadle journaled to a post 18, which is rigidly bolted to the floor 5, and connected with the lever 15-by means of a rod 22. The side bars of the hanger 12 pass freely down through slots 23 in the lever 15, whereby the platform is steadied from swinging about too freely in service.

19 is a weight to balance the weight of the lever, the follower, and treadle.

The operation is as follows: The mold-13 being placed upon the platform 11 and filled with cement, the follower 14 is forced down into the mold by means of pressure applied upon the treadle 17, the pressure thus exerted upon the platform 11 through the cement being indicated by the pointer 20 upon the dial, so that the exact pressure required may be applied to every sample of cement, thus giving an unvarying and equal test to all samples without any extra labor or time.

The cement-mold, a funnel therefor, a follower, a treadle, and apressure-indicator not specifically claimed herein are claimed in a combination somewhat similar to that herein shown in another patent, No. 423,756, dated March 18, 1890.

Having thus fully described my invention, what I believe to be new, and desire to secure by Letters Patent, is the following:

1. The combination of the frame 8, the weighing-scale 10, suspended thereon, the platform 11, freely suspended from the scales, the lever 15, journaled in the frame 8, the follower 14, suspended from the said lever over the platform 11, and the treadle 17 connected with the lever 15, substantially as shown and described.

2. The combination of the weighing-scale 10, the platform 11, suspended freely therefrom, the lever 15, journaled in a fixture, the treadle 17, journaled in a fixture and connected with the lever 15, a follower 14, suspended from the lever 15 over the platform 11, and a removable mold 13, adapted to be 5 placed upon the platform 11 and to be adjusted into line with the follower, substantially as shown and described.

3. The combination of a Weighing-scale, a I for applying pressure upon the lever, subplatform suspended thereon by means of a stantially as shown and described. hanger having two side bars, a lever jour- In testimonywhereof I affix my signature in naled in a fixture and crossing between the presence of two Witnesses. platform and the scale, and having vertical LEW 'IS GIRDLER. slots, through which the said side bars of the Witnesses: hanger pass freely, a followersuspended from J AS. WV. WEIR, the said lever over the platform, and means F. M. MILLER. 

